Research and Development Composites Molding Engineer

Re:Build Manufacturing; Commerce City (CO); On-site; USD 91,000 - 137,000; Full time

Benefits offered by this job

Annual bonus

Long-term incentive compensation

Competitive benefits package

Job summary

A manufacturing company in Commerce City, CO, is seeking a highly skilled R&D Composites Molding Engineer to lead the development of advanced thermoplastic molding processes. This role involves designing prototype tooling, researching new technologies, and managing multiple projects. The ideal candidate has 5+ years of thermoplastic processing experience, proficiency in SolidWorks, and a bachelor's degree in mechanical or related engineering. Competitive salary range is between $91,000 and $137,000, plus bonuses and benefits.

Qualifications

• 5+ years of thermoplastic processing experience (thermoforming, injection molding, compression molding).
• Hands-on experience working with molds and molding equipment.
• Experience managing multiple projects independently.

Responsibilities

• Develop and advance thermoplastic molding processes for R&D applications.
• Design prototype tooling and molds using SolidWorks.
• Manage multiple concurrent R&D composites projects independently.

Skills

Thermoplastic processing experience

Proficiency in SolidWorks

Troubleshooting complex process issues

Strong problem-solving skills

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

Job description

Research and Development Composites Molding Engineer

Commerce City, CO

About Re:Build Manufacturing & Oribi

Oribi Manufacturing, LLC (Oribi) located in Denver, CO, is a leader in the development and production of advanced thermoplastic composites. We utilize automation, robotics, and advanced materials to produce advanced composite parts for a wide range of industries, including sporting goods, defense, wind energy, automotive, marine, and others.

Re:Build Manufacturing is a growing family of industrial and engineering businesses combining enabling technologies, operational superiority, and strategic M&A to build America’s next generation industrial company. At Re:Build we deploy deep expertise in engineering, operations management, and technology to supercharge the performance of our member companies. We leverage deep professional expertise and a candid, principled operating culture to drive differentiated outcomes. Ours is a fast‑paced environment where individuals can stretch and be challenged to pursue their fullest potential.

Re:Build was founded to pioneer a profitable model for the revitalization of U.S. manufacturing. We’ve assembled a powerful set of complementary capabilities and lines of business that enable us to pursue a wide range of end markets. Our acquired businesses are grounded in build‑to‑print and by‑the‑hour engineering and design services, and we’re leveraging their combined expertise to migrate to increasingly sophisticated program development and production, as well as the generation of our own products. Our unique set of capabilities lend themselves to highly complex systems and products, and we offer customers a range of services including product and systems design, automation, fabrication, assembly, and large volume contract manufacturing. Our customers span a wide array of industries including aerospace, defense, mobility, healthcare, pharma, biotech, clean tech, chemicals, energy, lifestyle, food production, and industrial equipment.

Who we are looking for

Re:Build Manufacturing is seeking a highly skilled R&D Composites Molding Engineer to lead research and development of advanced thermoplastic molding processes, tooling technologies, and prototype equipment for our manufacturing operations. This hands‑on role emphasizes developing new molding processes, designing prototype tooling, and testing emerging technologies while working directly with molds, molding equipment, and R&D teams. You will independently manage multiple R&D projects from concept through prototype validation, supporting Re:Build's diverse manufacturing capabilities across multiple sites. The ideal candidate is an experienced engineer who combines strong technical knowledge with a hands‑on approach to solving complex R&D challenges and advancing manufacturing capabilities.

What you will get to do!

• Develop and advance thermoplastic molding processes for R&D applications
• Design prototype tooling and molds using SolidWorks
• Research and evaluate new tooling technologies and molding methods
• Provide hands‑on support during prototype builds, troubleshooting molds and molding equipment
• Lead new process development and qualification activities
• Manage multiple concurrent R&D composites projects independently
• Test and validate prototype tooling and process parameters
• Collaborate with engineering and technical staff across Re:Build sites
• Coordinate with external vendors and suppliers for materials, tooling, and services
• Document R&D processes, test results, specifications, and best practices

What you bring to the team

• Bachelor's degree in Mechanical Engineering, Materials Engineering, Plastics Engineering, or related engineering discipline
• 5+ years of thermoplastic processing experience (thermoforming, injection molding, compression molding, or thermoplastic composites)
• Proficiency in SolidWorks for 3D modeling and tooling design
• Hands‑on experience working with molds and molding equipment
• Strong understanding of thermoplastic materials and processing parameters
• Process development and prototyping experience
• Tooling design and modification experience
• Ability to troubleshoot complex process and equipment issues
• Experience managing multiple projects independently
• Strong problem‑solving and communication skills

Preferred Qualifications

• 10+ years of thermoplastic processing experience
• Experience with multiple thermoplastic processes (thermoforming, injection molding, compression molding, thermoplastic composites)
• Material science or polymer engineering background
• Experience in R&D or advanced manufacturing environments
• FEA or simulation analysis experience
• Experience with emerging composites technologies
• Primarily based at Re:Build's Denver facility
• Mix of office/engineering environment and hands‑on R&D lab/shop floor work
• Active participation during prototype builds and testing
• Occasional travel to other Re:Build sites or suppliers
• Standard day shift, Monday through Friday

Work Week is onsite - Monday - Friday

Compensation: The anticipated base salary range for this role is[$91,000 - $137,000]. Final compensation will be determined based on experience, qualifications, and internal equity. This role is also eligible forannual bonusandlong-term incentive compensation (LTIP), in addition to a competitive benefits package.

The BIG payoff

We are a company who is going to make a difference in the industries and the communities in which we choose to operate.

Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!

We want to work with people that reflect the communities in which we operate

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affidavit Employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at [e-mail] or you may call us at 617.909.6275.